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w. G. DUFFIELD PLOW Original Filed DeC- 22. 1919 4 Sheets-Sheet 4 Patented ai, 192e.

t OFF WAYNE' G. normen), O F MOLINE, ILLINOIS; AssIGNOaro DEERE a OOMBANY, or

v MOLINE,l ILLINOIS, A conPOaArioN or ILLINOIS.

PLOW.

Application filed December 22, 19,19, Serial NO. 346.706.' Renewedl March 21, 1922..

My invention relates' to gang'plows, preferably of the powerlifticlass, in which the land-ward wheel and the forward furrow wheel' are supported on independent axles connected together to be operated in unison; in raising Vand lowering the plow. Theobject of mylinventionis to pr vide means vby the operation of which theV plow can Abe maintained `at all times, in a 'parallel' relationA with thel ground. Othenobjects will be fullydescribed inI the following specification. f

Referring to the `drawings in which similar numerals-indicate identical parts Figure 1y is a plan view of a gang plow embodying my improvements.

Figure 2 plow raised.

Figure 3 is as similar? view to Figure?I with the plow in operative position. Figure 4 is aside elevation raised. y

Figure 5 is inoperative position. Y Figure 6 is an enlarged detail ofthe connection between'the twofaxles.- n Figure 7 is an enlarged detail of the with the Vplow means employed in `adjusting the furrow.v

wheel to level? the plow,v and .l FigureS is an enlarged detail of the bear;-

ings of the -landwlieel axle [and the landward end of the furrow wheel axle. f

While my improvement may be applieo to wheeled'eplows having one or more plow boclies,"l'haveillustrated my 'improvements embodied-in a 'plow ofthree-plowing units,

consisting ofbeams- 1i, 2 and 3 spaced apart and rigidly connected together by rearbracesla, forward braces 5* and intermediate braces 6. ,On the rear of each of thebeams iSA-mounted a alow 7' of a typewell known inthe art. The-beamsl and 3 converge toward the Vcentral beam 2 and are connectedk with` a 'laterally extending draw barVS by links 9` which are pivotallysupported on plates 10 and 11, the plate 10 being rigidly held between the beam- 1 and the adjacent brace 5' by suitable bolts, and theyplate 11 5C similarly secured between the-beam 3 and'its adjacent brace 5. ToI the-draw bar 3 any Vdesir-ed draft device can be attached.'y n

Rockably journaled in bearings 3112 on.y the' beams 1 and'Qis an axle 13 having its iiiv ner and bent upwardly and flattened to 'formy an arm 14. Landwardly the axle 13 extends is a vfront elevation with the Va side elevation'fwithtthe plow downwardly, and preferably forwardly, and

21 which is connectedliwith the arnrltvby a link 22, wherebyboth axles arerockable in unison. lFurrowward' the axlev 19' is bent downward and terminates in a spindle 22a to'Y on which is mounted a. furrowy wheel 23;` A'

strap 24 -is rigidly secured to the link 22. and extends to the `arm 21 Vto which it is' connected on the side` opposite to the link A22. A. similar strapV 2`5is secured. in a similar way to the rear end of theylink22 and the arm 14, An upwardly extending bracket/18 is mounted forwardly. onth'e bear 2, and ak rodaf) is-"connectedl to, the lbracket 48 andV to a coiledspring 50"whichis` attached to a4 hook 51 on the link 22, so thatthe tension of the spring` assists? in raising lthe plow.

VA downwardly extending bracket 26v is rigidly secured to the beam 3 and. on its Vlower end l pivotally mount a'bell crank 27' having itsforwardly extending arm 28 bifurcated 'fort-he reception Of'xthe axle 19 which is rotatablyheld thereinby a bolt 29'. To the opposite arm'30 of the bellcrank 27' is connected' a rod31 having its opposite end' connected to a coi-ledspring 32 the forward end of'which is securedjto the plate 11. A lever 33 is mounted on the bellcrank 27 and is providedV with the usual typeof' latch andi dog to engage with notches iin-ay sector 34' onthe beam 3.

' The power lift; mechanismk mayk be anyone of several types known in the art, but-` l prefer that having a two 4.partv clutch 35 onl the spindle 15:' which, is operated by actuation Vof ay trippingd lever 36; A lever 37 is rigidly secured intermediate its ends, on the axle 13, the trippinglever 36 `being pivotally carried on yits lower end, to the upper end of-"the lever 37v is conneeted'a rod 38 extending to a lever'39, pivotally mountedi intermediate its ends on a; bracket 40.011.

upstanding spindle 43, the latter, beingirof-l` i tatably journaledlin a sleeve: 44fwhich is.

' VWlien the -plow is lowered ythefaxles and 1.9 are yrocked ysimultaneously in the.Y

ofthe plow until l9'are in line. Y

movably connected to the 4bracket 40 by` a bellcrank 45 pivotally mountedv on the` bracket 40-v and p'ivetallyA "connected with the l upper portion of th'e-s'le'e've-'445 a link'46 is pivotally connected to the lower portion, of the sleeve 44 and to the bracket 40.

a roller 47 which engages with the upper hookl'shapedend ofthe bellcrank 45. By the lconstruction last,described,` it is apparentthat the lrear of v the plow is raised by thefo'peration lof raising thefront thereof, but I dov not limitk myselfjto the type of, mechanism shown and describedgfor raisir'ig.` and lowering, tlierear of the plow.v Y

same` directioin:k throughV` their connection with 'each other ,bythe link 2.2, and if the lever 33dev lieldfin the position shown in Figure 4 the axleswillbeparallel, as theyv are when first openinga. field. On the succeeding round,y however, the wheelQS will travel in thefurrow previously made and in consequencerthe plow willbe canted in Va furrowward direction, and I then level itfby rocking -thel lever jforwardlypand actuating they bellcrank 27, to which the lever 33 is'secured, so lthatthe plow is raised"` toa level, tliebellcrank'27'operating'as a leverv having its lfulcruinonthe axle 19, and assis'tedinfthe operation, bythe tension of' thespring 32.l YVhen-the plow israised and the wheels are on level ground", I again level the plow by rocking the lever 33 n a rearward@i direction thereby Vactuating the.

bellcrank'lQ? to lower furrowwald kside n; I n both 'bearings of the axle ywhat intim is" jf LIn` a wheeled plOzWithe combination of a plowcarrying frame, aland Wheel mountv ed on a crank axle held in fixed, bearings on the frame, a Yfurrow wheel .mounted on -Ya` crank axle parallel with .the land wheel axle,

means connectingqtogether the faxles for,v

transmitting rockingV movements, means for rocking one of the ,crank axles and'holding itf'in adjusted'position for adjusting the yframe vertically, and means foibodilyk adjusting vertically .the wheel-carrying portion of the furrow axle independently of the landwheelaxle.l n i 2. In a wheeled plow, combination of a plow-carrying frame, a crank n axle' rock-` ably Journaled Vin k.fixed bearings on the frame, a land wheelfmounted `on said crank axle, a second crank .axlerockably mounted in bearingscarriedby they frame and` having its outer end portion adapted to be vertically bodily adjusted,'meansconnected with the first mentioned crank axle and -with `the' framefor rocking said axle to kvadjust the the lower end ofthe leverw39A is mounted axle parallel lwith'thehlandwlieel crank axle 'and'having its landward end rockably journaled ina fixed bearing on' the frame and rockablyy Vsupported furrowward by said bellcrank, means connecting said axles forsimultaneous rockingv movement, and means to -actuate the .bell crank` whereby vthe 'furq row wheel axleis rocked in a yvertical direcy tion.v 4. In a wheeled'plow, 'the' combination lof a plow carrying frame,na landwheel mount-f ed on a crank axle rockably yjournaled 'in fixed bearings on the frame, a bell crank pivi v oted onthe furrowwardportionfof tlieframe and having one of its' arms'extending forwardly, a furrow wlieelmounted on a crank axle parallel with-the landwheel crank axle and .having its landward end rockably jouriialed in a fixed bearing and an adjustable bearing on therframe and in parallelism with the landwheel ax-le and connected `tliere withv for simultaneous rocking movement,

and means ito actuate the bell crank where-5 by the ,furrow wheel axle is rocked longitudinally to raise'or lower theifurrowward side ofthe plow.;V f

5. In a wheeled plow,` combination of a vplow carrying fframe, transversely f 'dis- V.posed 'crankaxlesrrnountedfin bearings on vsaid frame to` rock about transverse v`axes, a wheel mounted on one of said axles at one other .of said axlesat the opposite sideof said frame, means connecting `said axles together forv effecting-v simultaneous rocking thereof, and means forl adjusting .one ofls'aid axles toward or yfrom the frame independsideof said: frame, a wheel mounted on the l ently` of 4rocking of .such f axle about'fits,

transverse axis, yto raisegor lower one side lof saidV frame relativelyV to the; wheel atv that, side thereof. v y y Y y 6, In a wheeled plow, the combinationfof aplow carrying frame, a transverselyv dise' posedrocking crank axle mounted in, bearings on said frame,'.a landwheel mounted furrow wheel, fa transversely `disposed crank axle adapted torock about 'at transverse axisV andon which said; furrow wheel is mounted, inner and outer bearingson' the frame for said furrow wheel axle, said outer-bearing.

being vertically adjustable to raise-or lower the furrowward side vof the rframe relativelyi tothe vfurrow wheel, means for-so adjusting' said n. outer bearing, and means connecting A. 120 on said crank axle, means for rocking saidf crank'axle to vary the depth ofplowing,ia

said axles together for effecting simultaneous rocking thereof.

7. In a wheeled plow, the combination of a plow carrying frame, a transversely disposed roking Crank axle mounted in bearings on said frame, a landwlieel mounted on said crank axle, means for rocking said crank axle to vary the depth of plowing, a furrow wheel, a transversely disposed crank axle adapted to rook about a transverse axis, and on which said furrow wheel is mounted,

means supporting said furrow wheel axle on the frame and adjustable to raise or lower the furrowward side of said frame relatively to the furrow Wheel axle independently of rocking of said axle about its transverse axis, means for so adjusting said support-ing means, and means connecting said axles together for effecting simultaneous rocking thereof.

WAYNE G. DUFFIELD. 

